Skip to main content

learn.howToCalculate

learn.whatIsHeading

A quarterly estimated tax calculator determines the required estimated tax payments to avoid IRS underpayment penalties. Self-employed individuals and those with significant investment income must pay quarterly taxes on April 15, June 15, September 15, and January 15. The safe harbor amount is 100% of last year's tax (110% if AGI > $150,000).

Guia passo a passo

  1. 1Estimate annual income
  2. 2Divide by 4
  3. 3Submit estimated tax payment

Exemplos resolvidos

Entrada
$100,000 estimated income
Resultado
Pay ~$10,000-15,000 quarterly
Avoid penalties with safe harbor

Erros comuns a evitar

  • Not verifying results
  • Ignoring jurisdiction

Perguntas frequentes

What does this calculator do?

Identify calculation need

How do I use this calculator?

Input required values

Pronto para calcular? Experimente a calculadora Quarterly Tax gratuita

Experimente você mesmo →

Configurações

PrivacidadeTermosSobre© 2026 PrimeCalcPro